On Tue, 15 Jan 2008 15:14:21 +0000, Rui Maciel
<rui.maciel@gmail.com> wrote:
>GT wrote:
>
>> The most common reason for a laptop to overheat these days is down to
>> their unfortunate name - laptop - implying that you can use it on top of
>> your lap. Every single laptop (except a mac) *that I have encountered in
>> the last few years have the air intake or exhaust on the bottom of the
>> machine, so that if you use it on your lap, you block all airflow!
>
>But even ignoring incidents like this one, you are claiming that laptops
>overheat due to not being designed to be used on the top of a desk.
No, he wrote used on a lap not desk. The difference is a
desk is flat enough the feet on the bottom leave some space
for an intake on the bottom to still draw in air instead of
being blocked, while in a lap the typical side placement
(instead of middle) of the intake is more likely to rest on
one's legs.
>How
>could this use case be possibly missed in the design process? How, exactly,
>is this not a poor design decision?
All designs have tradeoffs. Noise, airflow, size, cost
among a few. The intake and exhaust are typically situated
where it makes the mose sense to do so as some parts can't
be moved without interfering with functionality like the
keyboard, touchpad, screen. I suppose they could omit a
drive or two and/or some ports on the sides to create intake
or exhaust there - and some do, but ultimately there are
several designs and it is up to the buyer to educate
themselves as much as possible before making a purchase
keeping in mind that with each design there are tradeoffs.
This does not excuse cooling that is marginal to
insufficient even in the best of situations, I was only
addressing the issue of airflow routing.
Rui Maciel wrote:
> GT wrote:
>
>> The most common reason for a laptop to overheat these days is down to
>> their unfortunate name - laptop - implying that you can use it on top of
>> your lap. Every single laptop (except a mac) that I have encountered in
>> the last few years have the air intake or exhaust on the bottom of the
>> machine, so that if you use it on your lap, you block all airflow!
>
> I remember a while back, when Apple started shipping laptops which suffered
> from overheating problems and the customers started complaining, that Apple
> itself claimed that their laptops were running as expected and that they
> should not be used over the lap. Then it was discovered that the Apple
> laptops were overheating thanks to bad design, a problem which was made
> worse due to the laptops being poorly assembled (too much thermal paste
> that hindered heat dissipation).
>
> But even ignoring incidents like this one, you are claiming that laptops
> overheat due to not being designed to be used on the top of a desk. How
> could this use case be possibly missed in the design process? How, exactly,
> is this not a poor design decision?
>
>
> Rui Maciel
You need something with a vent in the back. Like this one - Asus C90.
Re: Top 5 Reasons for Laptop Overheat 
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